Baking-oven



J. K. BRADLEY.

BAKING OVEN.

APPLICATION FILED OCT- 13, I919.

1 ,385,662. 7 Patented July 26, 1921.

2 SHEETS-SHEET 1.

I Q v.a'r

J. K. BRADLEY.

BAKING OVEN.

APPLICATION FILED OCT-13,1919.

1,385,662. I Patented July 26, 1921.

' 2 SHEETS-SHEET 2.

i 'I I III I i qu u visieT s YPATENT OFFICE? JAMES 'K, nnAnLEv, onCLEVELAND HEIciI Tsfo Io, nssIGNon irof'rirn NATIONAL SYSTEM or BAKnRrnscog. or CLEVELAND, 01:10, A CORPORATION or 01:10.

BAKING-OVEN.

T 0 allw 7mm it may concern/:1

Be it known that I, JAMEs K.;BRADLEY,

a citizen of the United States, and a resident of Cleveland Heights,county of .Cuyahoga,

and State of Ohio, have invented a new and useful Improvement inBaking-Ovens, of which the followingis a specification, the principle ofthe inventionbeing herein explained and the best mode in which I havecontemplated applying that principle, so as to distinguish it fromotherinventions.

The present invention relates to baking ovens particularly designed foruse in bakeries in which the baking is done in small stores on thestreet in full view ofthe public. lnsuch bakeries the usual large heavyoven cannot be used as thefioors are not ordinarily constructed to carryheavy loads and the ovens cannot be installed or removed readily becauseof their size. More particularly then, the present invention ,relatestoan oven suitable for use in this type ofbakcries. in which provision-ismade sothat the interior of the oven may be visible atall times, notonly to the bakers but 'to the public as well. y

Provision is also made whereby the oven may be assembled in place on thefloor quickly andeasily withoutrequiring skilled mechanics, and the ovenmay be taken apart as easily, the parts fitting snugly together andbeing so made as to require no fitting or cutting in assembly. To theaccomplish.- ment of the foregoing and related ends, said invention,then, consists of the means hereinafter fully described -andparticularly pointed out in the claims, The annexed drawing'an-d thefollowing description set forth in detail certain mechanism embodyingthe invention, such-disclosed means constituting, however, but one ofvarious mechanical forms in which the principle of the invention may beused.

In said annexed drawing r Figure 1- is a perspective view of my improvedoven showing the doorv open for the.

insertion or removal of the bakingpans; Fig.2 is avertical sectionthrough the oven; Fig. 8 is a perspective view similar toFig. 1 butshowing the door closed; Fig 4; is an end elevation of the oven; andFig. 5 is a section of a detail of the joint between panels.

The present baking oven consists of suitable end members 1 having legs2, these end ber.

providedwith a pulley wheel 18 adapted to- Q Specification of Letters t7' Patented July 1 9 21.

' Application filed 0ctober 13, 1919. Serial No. 330,440. i Y

bers are eight sided, the lower part'being' roughly rectangular and theupper part being decagonal in shape. These end members have an inturnedflange 5 turned inwardly and extending; around the member and thisflange is provided with a series .of

spaced apertures 6.

Fitting closely within the flange and against the frame work is asuitable inclosing plate 7 which is formed of two sheets of metalseparated by an insulating lining of asbestos or the like, the twosheets being held together and to the frame work by bolts 8 or the'like.In Fig. 4, I have shown the two upper openings in the end member asbeing-suitably closed by glass windows 9 so.

that the interior of the oven may be seen from the end.

One of the ends is provided with the driv- 'ing mechanism for the shaft4, this driving mechanism consisting of a spur gear 10 secured to theextending end of the shaft and in mesh with a small gear 11 carried on ashaft 12'rotatably mounted on the end mem her. A worm wheel 13 ismounted on the same shaft 12 and is'driven by a worm screw 14 on ashaft15 carried in suitable bearings on a bracket 16 mounted on the end mem-The other end 17 of the wormscrew is be driven. by a belt 19 from anysuitable source of power such as an electric motor or the like.

- The oven consists of the two end members which are connected by panelsor plates 20 which fit within thefianges on the end members; Thesepanels are secured to the endmembers by means of bolts 21 which passthrough the apertures in the flanges and through alined apertures in theends of the panels. Each panel is'made up of two sheets of metal 22 and23 between which is placed asbestos 24 or other suitable insulatingmaterial and the two sheets are held together by bolts 25 so-that thepanels may be handled and put in place quickly andeasily.

- The edges of the panels are made as best shown in detail in Fig. 5,the outer sheet 22 being bent along its edge 26 at the correct angle forthe next panel and extending beyond the panel proper. The inner sheet 23is bent up toward the outer sheet and then along the edge 26 to form theextending lap 27. The next adjacent panel 28 is formed in the same wayexcept that the lower sheet 29 is bent and the outer sheet 30 is bentrtoconform therewith to make the lap 31 which connects the panel 23 on itsinner surface.

"Bolts '32 are passed through apertures 33 inlthe panels and extendinglaps to secure the panels together and prevent the escape of heat fromthe interior of the oven.

I v The panels are all formed in th'esame way but one of the sides 35 ismerely a frame I apertured cars 47 on the ends of the trays may beprovided, one on either side of the oven if desirable.

Within the oven, on the centrally extending shaft, are mounted twooctagonal wheels .or spiders 43 which are keyed or otherwise secured tothe shaft and these wheels are provided with pins 44; at the anglesbetween the sides. The trays 45 for the baking pans 46 arecarried onthese pins by means of which receive thepins and allow pivotal movementso that the trays at all times retain their horizontal position.

On one end. of thesertrays I have shown verticalplates 48 which will beformed of metal which is enameled and which contains advertising ordescriptive matter so that as the trays revolve they will become visiblethrough. the windows. The present oven will, of course, be heated in anysuitable manner.

It will be seen that the oven is constructed of a very few numberofpart's, which can be bolted together quickly and easily'and as easilytaken apart. This is of great advan tagein the present type of bakerieswhere small, stores are used in which the ovens must be assembled. Theoven itself consists merely of the end members and the'panels and doors.The shaft may be withdrawn and the trays; spiders and pans removed sothat the whole oven can easily be brought into a store" room through theordinary door and assembled in place on the floor. The panels are unitsand contain the necessary insulation and are so formed that whenoverlapped and bolted together they make tight times, thus allowing thestated means be employed.

joints thus conserving the heat. Theoven as a whole is very light inweight and the large windows in the ends and door permit the'readyinspection of the interior at all entire baking operation.

Other modes of applying the principle of my invention may be employedinstead oflthe one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the folflowingclaims or the equivalent of such tinctly claim as my invention 1. In abaking oven the combination of end members provided with inturnedapertured flanges, "and panels adapted to be removably mounted betweensaid end members, said panels having abutting ends and extendingportions adapted to overlap,"such public to view the I thereforeparticularly point out and dis overlapping portions ibeing' removablybolted together, said panels having apertures in their ends adaptedto'lbe alined with such apertures in said flanges and bolts adapted topass through :such alined apertures to secure said panels to said 'endmembers.

tured flanges, and panels adapted to heremovably mounted between saidendmem-' bers, said panels'having'abutting ends and extending portionsadap'ted to overlap, such overlapping portions being removably boltedtogether, said panels having apertures in apertures in said flanges andbolts adapted secure said panels to said end members, and a doorprovided with transparent windows mounted in one of said panels.

3. In a portable *oven, the combination of end members comprisingeridjframe members provided 'with in'tu'rned apertured flanges, platesmounted in said frame members to close the same, panels adapted to beremovably mounted between said end mem- 2. In a baking oven thecombination of end members provided with inturned apertheir ends adaptedto be alined with such 'to pass through such 'alined apertures to bers,said panels havingabutting ends and t,

extending portions adapted to overlap, such overlapping portions beingremovably boltedtogether, said panels having apertures in their-endsadapted to be alined with such apertures in said flanges, both adaptedto pass through such apertures in said flanges to secure said panels tosuch frame members, and a door provided with transparent windows mountedin one of said panels.

Signed by me, this 10th day of October,

l K. BRADLEY.

